Steel strip zigzag bending mechanism for battery pack composite lamination
By designing a Z-shaped bending mechanism for the composite pressure strip of the battery pack, and utilizing multiple bending segments and limiting plates, the problems of low efficiency and low precision in the traditional bending of battery steel strips are solved, enabling fast and precise bending of battery steel strips and improving the performance and stability of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN HELAI TECH CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional battery steel strip bending processes are inefficient and difficult to guarantee bending accuracy and consistency, which affects the performance and stability of the battery pack.
Design a Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs, including a frame, a fixed base, a lifting platform, an elastic device, a cutting blade, and a driving component. By setting multiple bending sections and limiting plates, the mechanism enables fast and precise bending of the steel strip.
This technology enables efficient and precise Z-shaped bending of the battery steel strip, improving the performance and stability of the battery pack.
Smart Images

Figure CN224346688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery steel strip processing technology, and in particular to a Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs. Background Technology
[0002] In the battery manufacturing process, the battery steel strip, as a key component connecting battery cells, has a crucial impact on the performance, safety, and stability of the battery pack due to its shape and size. Traditional battery steel strip bending processes rely heavily on manual operation, which is not only inefficient but also makes it difficult to guarantee bending accuracy and consistency, thus affecting the overall performance of the battery pack.
[0003] With the rapid development of electric vehicles and energy storage systems, higher requirements are being placed on the bending accuracy, efficiency, and automation of battery steel strips. Therefore, there is an urgent need for a Z-shaped bending mechanism for steel strips used in battery pack composite pressure strips, capable of efficiently and accurately completing the Z-shaped bending of battery steel strips. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a steel strip Z-shaped bending mechanism for composite pressure strips of battery packs, which can efficiently and accurately complete the Z-shaped bending of battery steel strips.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a steel strip Z-shaped bending mechanism for composite pressure strips of battery packs, comprising:
[0006] frame;
[0007] The first fixed seat is connected to the frame and has a first bent section.
[0008] The second fixed seat is connected to the frame and is located on the X-direction side of the first fixed seat. The second fixed seat is provided with a second bent section.
[0009] The lifting platform is located between the first fixed seat and the second fixed seat, and is movably connected to the frame in the vertical direction.
[0010] The lower part of the lifting platform is connected to the frame via a flexible device.
[0011] The steel strip winding roller is located on the X-direction side of the second fixed seat and is used to convey the steel strip in the reverse X direction.
[0012] A baffle is vertically connected to the first fixed base, and the baffle is located on the opposite side of the X direction of the first bending section;
[0013] The cutting blade is located above the second fixed base and on the X-direction side of the second bending section. The cutting blade is movably connected to the frame in the vertical direction.
[0014] The first driving component is used to drive the cutting blade to move.
[0015] The extrusion block has a third bending section on one side that matches the first bending section, and a fourth bending section on the other side that matches the second bending section. The extrusion block is movably connected to the frame in the vertical direction.
[0016] The second driving component is used to drive the extrusion block to move.
[0017] The second driving element drives the extrusion block to switch between the first and second states;
[0018] In the first state, the extrusion block is located above the lifting platform, and the upper edge of the lifting platform is flush with the upper edges of the first and second fixed seats, and the spring is extended.
[0019] In the second state, the lower part of the extrusion block abuts against the lifting platform, the upper edge of the lifting platform is located below the first and second bending sections, the third bending section contacts the first bending section, the fourth bending section contacts the second bending section, and the spring contracts.
[0020] Furthermore, the elastic device includes several springs, with the axis of the springs being vertical, and the several springs being evenly distributed along the X-direction.
[0021] Furthermore, the angle between the first, second, third, and fourth bending segments and the horizontal is 45°.
[0022] Furthermore, the Z-shaped bending mechanism of the steel strip of the battery pack composite pressure strip also includes a first limiting plate and a second limiting plate. The first limiting plate is connected to the Y-direction side of the first fixed seat and the second fixed seat, and the second limiting plate is connected to the opposite Y-direction side of the first fixed seat and the second fixed seat.
[0023] Furthermore, both the first and second driving components are cylinders.
[0024] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting the first bending section, the second bending section, the third bending section and the fourth bending section, the cut rectangular battery steel strip can be bent quickly, thereby efficiently and accurately completing the Z-shaped bending of the battery steel strip. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of a steel strip Z-shaped bending mechanism for a composite pressure bar in a battery pack according to a specific embodiment of this utility model;
[0026] Figure 2 This is a front view of a steel strip Z-shaped bending mechanism for a composite pressure bar in a battery pack, according to a specific embodiment of this utility model.
[0027] Label Explanation
[0028] 1. Rack;
[0029] 2. First fixed seat; 21. First bending section;
[0030] 3. Second fixed seat; 31. Second bending section;
[0031] 4. Lifting platform;
[0032] 5. Elastic device; 51. Spring;
[0033] 6. Steel strip winding roller; 61. Battery steel strip;
[0034] 7. Baffle;
[0035] 8. Cutting knife;
[0036] 9. First driving component;
[0037] 10. Extrusion block; 101. Third bending section; 102. Fourth bending section;
[0038] 11. Second driving component;
[0039] 12. First limiting plate;
[0040] 13. Second limit plate. Detailed Implementation
[0041] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0042] Please refer to Figures 1 to 2 A steel strip Z-shaped bending mechanism for composite pressure strips in battery packs, comprising:
[0043] Rack 1;
[0044] The first fixed seat 2 is connected to the frame 1, and the first fixed seat 2 is provided with a first bent section 21;
[0045] The second fixed seat 3 is connected to the frame 1. The second fixed seat 3 is located on the X-direction side of the first fixed seat 2. The second fixed seat 3 is provided with a second bending section 31.
[0046] The lifting platform 4 is located between the first fixed seat 2 and the second fixed seat 3, and is movably connected to the frame 1 in the vertical direction.
[0047] The lower part of the lifting platform 4 is connected to the frame 1 via the elastic device 5.
[0048] The steel strip winding roller 6 is located on the X-direction side of the second fixed seat 3 and is used to convey the steel strip in the reverse direction along the X direction.
[0049] Baffle 7 is vertically connected to the first fixed base 2 and is located on the opposite side of the X direction of the first bent section 21.
[0050] The cutting blade 8 is located above the second fixed base 3 and on the X-direction side of the second bending section 31. The cutting blade 8 is movably connected to the frame 1 in the vertical direction.
[0051] First driving component 9, the first driving component 9 is used to drive the cutting blade 8 to move;
[0052] The extrusion block 10 has a third bending section 101 on one side that matches the first bending section 21, and a fourth bending section 102 on the other side that matches the second bending section 31. The extrusion block 10 is movably connected to the frame 1 in the vertical direction.
[0053] The second driving component 11 is used to drive the extrusion block 10 to move.
[0054] The second driving component 11 drives the extrusion block 10 to switch between the first state and the second state;
[0055] In the first state, the extrusion block 10 is located above the lifting platform 4, the upper edge of the lifting platform 4 is flush with the upper edges of the first fixed seat 2 and the second fixed seat 3, and the spring 51 is extended.
[0056] In the second state, the lower part of the extrusion block 10 abuts against the lifting platform 4, the upper edge of the lifting platform 4 is located below the first bending section and the second bending section 31, the lower part of the extrusion block 10 abuts against the lifting platform 4, the upper edge of the lifting platform 4 is located below the first bending section and the second bending section 31, the third bending section 101 contacts the first bending section 21, the fourth bending section 102 contacts the second bending section 31, and the spring 51 contracts.
[0057] In the above implementation, in the first state, the steel strip winding roller 6 conveys the steel strip along the X direction, and after passing through several conveying rollers, it is conveyed to the upper edge of the first fixed seat 2, the lifting platform 4, and the second fixed seat 3. When the steel strip touches the limiting plate, the conveying stops, and the first driving member 9 drives the cutting blade 8 to move downward to cut the steel strip. After the cutting is completed, the second driving member 11 drives the extrusion block 10 to move downward to the second state, which extrudes the battery steel strip 61 located on the lifting platform 4, the first fixed seat 2, and the second fixed seat 3 downward, thereby extruding the steel strip into a Z-shaped steel strip. Compared with the prior art, by setting the first bending section 21, the second bending section 31, the third bending section 101, and the fourth bending section 102, the cut rectangular battery steel strip 61 can be bent quickly, thereby efficiently and accurately completing the Z-shaped bending of the battery steel strip 61.
[0058] In a preferred embodiment, the elastic device 5 includes a plurality of springs 51, the axial direction of which is vertical, and the plurality of springs 51 are distributed at equal intervals along the X direction.
[0059] In the above embodiments, by setting several springs 51, the stability of the extrusion block 10 extruding the lifting platform 4 can be ensured, thereby improving efficiency.
[0060] In a preferred embodiment, the first bending segment 21, the second bending segment 31, the third bending segment 101 and the fourth bending segment 102 form an angle of 45° with the horizontal.
[0061] As a preferred embodiment, the steel strip Z-shaped bending mechanism of the battery pack composite pressure strip further includes a first limiting plate 12 and a second limiting plate 13. The first limiting plate 12 is connected to the Y-direction side of the first fixed seat 2 and the second fixed seat 3, and the second limiting plate 13 is connected to the opposite Y-direction side of the first fixed seat 2 and the second fixed seat 3.
[0062] In the above embodiments, by setting the first limiting plate 12 and the second limiting plate 13, the battery steel strip 61 can be limited, thereby ensuring that the battery steel strip 61 does not deviate, and thus improving the Z-shaped bending efficiency of the battery steel strip 61.
[0063] In a preferred embodiment, both the first driving component 9 and the second driving component 11 are cylinders.
[0064] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs, characterized in that, include: frame; The first fixed seat is connected to the frame and has a first bent section. The second fixed seat is connected to the frame and is located on the X-direction side of the first fixed seat. The second fixed seat is provided with a second bent section. The lifting platform is located between the first fixed seat and the second fixed seat, and is movably connected to the frame in the vertical direction. The lower part of the lifting platform is connected to the frame via a flexible device. The steel strip winding roller is located on the X-direction side of the second fixed seat and is used to convey the steel strip in the reverse X direction. A baffle is vertically connected to the first fixed base, and the baffle is located on the opposite side of the X direction of the first bending section; The cutting blade is located above the second fixed base and on the X-direction side of the second bending section. The cutting blade is movably connected to the frame in the vertical direction. The first driving component is used to drive the cutting blade to move. The extrusion block has a third bending section on one side that matches the first bending section, and a fourth bending section on the other side that matches the second bending section. The extrusion block is movably connected to the frame in the vertical direction. The second driving component is used to drive the extrusion block to move. The second driving element drives the extrusion block to switch between the first and second states; In the first state, the extrusion block is located above the lifting platform, and the upper edge of the lifting platform is flush with the upper edges of the first and second fixed seats, and the spring is extended. In the second state, the lower part of the extrusion block abuts against the lifting platform, the upper edge of the lifting platform is located below the first and second bending sections, the lower part of the extrusion block abuts against the lifting platform, the upper edge of the lifting platform is located below the first and second bending sections, the third bending section contacts the first bending section, the fourth bending section contacts the second bending section, and the spring contracts.
2. The Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs according to claim 1, characterized in that, The elastic device includes several springs, with the axis of the springs being vertical, and the several springs being evenly distributed along the X-direction.
3. The Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs according to claim 1, characterized in that, The first, second, third, and fourth bends form an angle of 45° with the horizontal.
4. The Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs according to claim 1, characterized in that, The steel strip Z-shaped bending mechanism of the battery pack composite pressure strip also includes a first limiting plate and a second limiting plate. The first limiting plate is connected to the Y-direction side of the first fixed seat and the second fixed seat, and the second limiting plate is connected to the opposite Y-direction side of the first fixed seat and the second fixed seat.
5. The Z-shaped bending mechanism for steel strips used in composite pressure strips for battery packs according to claim 1, characterized in that, Both the first and second driving components are cylinders.